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Finding the Fourth Proportional to 373,957, 515,798.77 and 253,045.06

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Solution

The fourth proportional to 373,957, 515,798.77 and 253,045.06 is: 349,024.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,957 : 515,798.77 = 253,045.06 : x
  2. Step 2: Convert to fraction form
    373,957/515,798.77 = 253,045.06/x
  3. Step 3: Cross multiply
    373,957x = 515,798.77 × 253,045.06
  4. Step 4: Simplify right side
    373,957x = 130,520,330,702.58
  5. Step 5: Solve for x
    x = 130,520,330,702.58/373,957
  6. Step 6: Final answer
    x = 349,024.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.